A kind of antibacterial powder of quartz-loaded nano-silver particles and preparation method thereof
A technology of nano-silver particles and antibacterial powder, applied in botany equipment and methods, fungicides, chemicals for biological control, etc., can solve the problems of carrier thermal decomposition or melting difficult to meet the requirements, carrier cost is high, etc., to achieve synthesis High efficiency, cheap and easy-to-obtain raw materials, and low energy consumption
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Embodiment 1
[0026] Put 100g of natural and pure quartz mineral raw material into a ball mill tank for 1 hour according to the mass ratio of material, ball and water in the ratio of 1:2.5:0.8, and pass through a 80-mesh porous sieve for sieving. Then put the undersize slurry into an oven at 150° C. for drying to obtain a white powder for future use. Weigh 2 g of the above white powder and disperse it in a mixed solution of 50 ml of deionized hydrated ethanol, where the volume ratio of deionized hydrated ethanol is 1:1, and add 10 ml of AgNO with a concentration of 1 g / 100 ml to it. 3 The solution was magnetically stirred for 12 h, and then evaporated to dryness at 80°C to obtain a dark green powder. The obtained dark green powder was calcined in an air atmosphere in a muffle furnace. The heating rate is 1°C / min, and it is kept at 500°C for 2 hours. Then naturally cool down to room temperature to obtain the quartz-loaded nano-silver particle antibacterial powder.
Embodiment 2
[0028] Put 100g of natural and pure quartz mineral raw material into a ball mill tank for 6 hours according to the ratio of material, balls and water at a ratio of 1:2.5:0.8, and pass through a 325-mesh porous sieve for sieving. Then put the undersize slurry into an oven at 150° C. for drying to obtain a white powder for future use. Weigh 2 g of the above white powder and disperse it in a mixed solution of 50 ml of deionized hydrated ethanol, where the volume ratio of deionized hydrated ethanol is 1:1, and add 10 ml of AgNO with a concentration of 1 g / 100 ml to it. 3 The solution was magnetically stirred for 12 h, and then evaporated to dryness at 80°C to obtain a dark green powder. The obtained dark green powder was calcined in an air atmosphere in a muffle furnace. The heating rate is 1°C / min, and it is kept at 500°C for 2 hours. Then naturally cool down to room temperature to obtain the quartz-loaded nano-silver particle antibacterial powder.
Embodiment 3
[0030] Add 100g of natural and pure quartz mineral raw material into a ball mill tank for 3 hours according to the ratio of material, balls and water at a ratio of 1:2.5:0.8, and pass through a 160-mesh porous sieve for sieving. Then put the undersize slurry into an oven at 150° C. for drying to obtain a white powder for future use. Weigh 2 g of the above white powder and disperse it in a mixed solution of 50 ml of deionized hydrated ethanol, wherein the volume ratio of deionized hydrated ethanol is 1:10, and add 10 ml of AgNO with a concentration of 1 g / 100 ml to it. 3 The solution was magnetically stirred for 12 h, and then evaporated to dryness at 80°C to obtain a dark green powder. The obtained dark green powder was calcined in an air atmosphere in a muffle furnace. The heating rate is 1°C / min, and it is kept at 500°C for 2 hours. Then naturally cool down to room temperature to obtain the quartz-loaded nano-silver particle antibacterial powder.
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